The application of model based reasoning within a decision support system for protection engineers

This paper discusses model based reasoning applied to protection system perforniance analysis. Appropriate modelling and reasoning methodologies are indicated, and their advantages considered. The iiecessi ty of incorporating protection system perforinance analysis within a decision support system (DSS), desigiied for utility protection engineers, is presented. Al~rni processing and fault diagnosis are demonstrated AS further requirements of the DSS for protection engineers, within which knowledge based reasoning and model based reasoning are combined to provide tlic overall functionality required.